Tutorial Archives - Page 4 of 14 - Robotic Paint Group Ltd

08May 2025 by robotic paint

Heating Methods of Paint Curing Furnace

Tutorial

For paint shop construction, curing furnace is a key unit. Paint film quality has a very important relationship with the temperature in curing furnace. The furnace heating methods are generally in two ways - hot air circulation & infrared radiation. Hot air circulation is also available as direct heating and indirect heating. Direct heating method There are two types of heat sources used for direct heating, electric heater and gas heater method. The advantages of direct electric heater are extremely smooth temperature in the furnace and strong adaptability of workpieces - solid-state relay PID is used to adjust the temperature, temperature deviation in the furnace is small. The only disadvantage is its relatively slow temperature curve and installation power. Also, since it is heated by hot air circulation, the curing…

17Mar 2025 by robotic paint

UV Curing Principles and Application Guidance

Tutorial

Ultraviolet light (UV) curing uses the photosensitivity of photoinitiators (photosensitizers) to form photoinitiators under ultraviolet light to stimulate the decomposition of ecological molecules into free radicals or ions, so that unsaturated organic matter undergoes chemical reactions such as polymerization, grafting, and cross-linking to achieve the purpose of curing. Treatment of infrared radiation from UV lamps: Ultraviolet high-pressure mercury lamps convert 60% of their total power into infrared radiation, and the bulb surface temperature can rise up to 700-800℃. In order to avoid overheating of materials, high-power lamps and multi-lamp systems are used in UV curing devices, so various measures are generally taken in the device to cool the lamp tube, reflector lampshade and substrate. The common used methods: First is air cooling, which is the most widely used method today…

08Mar 2025 by robotic paint

In-depth Analysis of Paint Drying Process in Oven

Tutorial

Paint drying refers to the entire process of converting a liquid or viscous film into a solid coating. It is also the process of converting paint into a decorative and protective coating. It is directly related to the final effect and also an extremely important part of the entire paint application. Paint drying are generally available for physical and chemical drying process. Physical drying process Paint relies on solvent volatilization to form a film, such as single-component paints like perchloroethylene paint, chlorinated rubber paint, nitro paint and acrylic paint. It has only one drying stage, the resin wraps the pigment then dissolves in the solvent. After painting, the solvent evaporates to leave a solid coating film, which belongs to the volatilization film formation of solvent-based dispersion medium. The characteristics of…

05Mar 2025 by robotic paint

RTO or RCO for Waste Air Treatment?

Tutorial

During paint shop operation, there's a lot of waste air being blown out of workshop. In order to maintain a health environment and reduce air pollution, we must install waste air handling device to catch or break the waste components to eco-friendly materials. Till present, the most popular ways and highest level in this field are named RTO(Regenerative Thermal Oxidizer) & RCO(Regenerative Catalytic Oxidizer). They're working in different ways and suitable for different plants. Here we briefly compare the two for quick understanding so we know how to choose between. RTO & RCO Working Principles RTO - Heat the organic waste air to above 760℃ to oxidize and decompose the VOCs in the waste gas into carbon dioxide and water. The gas stays in the high temperature zone for a…

23Nov 2024 by robotic paint

Air Compressor Guides for Spray Painting

Tutorial

Air compressor (commonly known as an air pump) is a device that provides compressed air. In addition to spray painting, all pneumatic tools and equipment will use compressed air with a certain pressure and flow rate as power. A typical air compressor is shown in the figure: Air flow control and regulation 1. The air output from compressor is not directly connected to the pneumatic tool, but is transported to a gas holder and then connect to various gas application nodes through pipelines. In some air compression supply systems, in addition to the gas holder with the compressor itself, another tank is added. The compressed air output from compressor is generally stored temporarily in gas holder. Only when the pressure of the gas in the air tank reaches the required…

24Oct 2024 by robotic paint

Test Method for Paint Film Moisture and Heat Resistance

Tutorial

Moisture and heat resistance of paint film is an important indicator for testing the performance of paint films after painting. Definition, purpose and significance of paint film resistance to moisture and heat The moisture and heat resistance of a paint film refers to the ability of the paint film to protect against the effects of high temperature and high humidity in outdoor environments. When the ambient temperature is high, humid air and saturated water vapor will damage the substrate protected by the coating. The damage mechanism is mainly as follows: when water penetrates the paint film and reaches the metal substrate, it will produce electrochemical corrosion to the substrate. At the same time, the paint film itself will absorb some water and swell, reducing the adhesion between the paint film…

16Oct 2024 by robotic paint

‌Air Filter Filtration Grade Comparison‌

Tutorial

Air filter is the most important unit in clean room AHU system configuration. A proper installation of different filters will greatly improve the air cleanness whichis crucial for activities in this area. Air filters are available in multiple grades according to filtration efficiency, mainly including primary filters, medium efficiency filters, high and medium efficiency filters, sub-high efficiency filters and hepa filters. Filters of different levels differ in filtration efficiency and applicable occasions. Primary filter‌: Mainly used to filter large dust particles ≥5.0μm and various solid particles as the primary filter of the air purification system to protect the medium filter. It has a simple structure and is cheap. It is often placed at the fresh air inlet of the air conditioning equipment or after the fresh air and return air…

09Oct 2024 by robotic paint

Electrophoresis or Powder Coating?

Tutorial

Electrophoresis and powder coating are widely solutions used for metal surface treatment. Regardless the way of application, the consideration over the two options are more awared without a professional guidance. Following we collected the pros and cons of electrophoresis and powder coating and how to choose for specific purposes. Electrophoresis: a commonly used industrial automation production process. During the electrophoresis process, metal objects are electrified and immersed in an electrophoresis tank. There is an electrolytic solid powder solution in the conductive liquid. When it moves from the anode on the metal to the cathode, the pigment moves from the anode of the metal to the cathode of the metal and combines with the cathode surface to form a shell. The products produced using electrophoresis technology have a smooth surface and…

23Sep 2024 by robotic paint

Plastic Material Characteristics and Applications

Tutorial

Plastic Material Overview PE、PP、PVC、PS、PC、PF、EP、ABS、PA、PMMA all plastic materials (also known as polymer materials) are a type of plastic synthetic materials made from polymer compounds through different processing methods. Plastic materials are well recognized for its light weight, high strength, corrosion resistance, good insulation, etc., and are widely used in packaging, construction, automotive, electronics and other industries. Polyethylene(PE): a lightweight, flexible thermoplastic with good chemical resistance. According to the density, it can be divided into high-density polyethylene (HDPE) and low-density polyethylene (LDPE). Polypropylene (PP): relatively high heat resistance, chemical resistance and rigidity, its a common material for automotive parts and household appliances. Polyvinyl chloride (PVC): come with good chemical corrosion resistance, mechanical strength and electrical insulation, it is commonly used in pipes, wires and cables, and medical equipment. Polystyrene (PS): It is…

03Sep 2024 by robotic paint

Neodymium Magnet Painting Solution

Tutorial

Neodymium or NdFeB is a new type of strong magnetic material, composed of neodymium, iron, boron and other elements. It is widely used in motors, generators, computers, communications, aerospace and other fields due to its high magnetic energy, high coercive force, high magnetic permeability and high stability. In order to better use the performance of NdFeB, surface painting is required. Surface painting can not only improve the magnet corrosion resistance, but also improve its oxidation resistance, thereby improving its stability and service life. Befor we start the actual painting, the magnet surface needs to be pretreated to remove surface dirt, oxide layer and impurities. The general pretreatment includes chemical degreasing, ultrasonic cleaning, electrolytic degreasing and other steps to remove surface dirt and oxide layer to achieve a certain surface roughness.…

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